Home / 13,195.72-19,781.43-4,873.78

Finding the Fourth Proportional to 13,195.72, 19,781.43 and 4,873.78

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Solution

The fourth proportional to 13,195.72, 19,781.43 and 4,873.78 is: 7,306.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,195.72 : 19,781.43 = 4,873.78 : x
  2. Step 2: Convert to fraction form
    13,195.72/19,781.43 = 4,873.78/x
  3. Step 3: Cross multiply
    13,195.72x = 19,781.43 × 4,873.78
  4. Step 4: Simplify right side
    13,195.72x = 96,410,337.91
  5. Step 5: Solve for x
    x = 96,410,337.91/13,195.72
  6. Step 6: Final answer
    x = 7,306.18

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.